Ousu no Mikoto - Oousu no Mikoto

Japanese: 大碓命 - おおうすのみこと

...It was a former prefectural shrine, and in 1946 it was tentatively decided to be promoted to a national minor shrine, but this did not come to fruition. The main deity is currently Oousu-no-Mikoto, with Emperors Suinin and Keikō as secondary enshrines, but this is thought to have occurred towards the end of the Muromachi period or the beginning of the early modern period, and in the Six National Histories it is referred to as "Sanage-no-Kami." It is thought that the shrine originated from the faith in Mount Sanage, which straddles both Owari and Mikawa provinces, and the main shrine is located at the southern foot of the mountain, while the East and West shrines are located on the east and west sides of the mountain. ...

From [Emperor Yamato Takeru]

…The story is summarized below based on the Kojiki. Ousu no Mikoto (Yamato Takeru)'s older brother, Oousu no Mikoto, stole a maiden that his father, the Emperor, had taken, and therefore did not participate in morning and evening meals. Ordered by his father to teach him this, Ousu caught his brother as he entered the morning toilet, tore apart his limbs, wrapped him in straw mats, and threw him away. …

*Some of the terminology explanations that mention "Ousu no Mikoto" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…旧県社で1946年国幣小社に昇格が内定したが実現しなかった。祭神は現在大碓（おおうす）命を主神として，垂仁･景行天皇を配祀するが，このようになったのは室町末期ないし近世初頭のことと思われ，六国史には〈狭投（さなげ）神〉とある。尾張と三河両国にまたがる猿投山に対する信仰よりはじまった神社と考えられ，その南麓に本社が，山上の東西に東宮･西宮が鎮座する。…